... or phone 2.Alarm for Fire,Thief, Water,Gas,Dangerous 3.Public security--shop mall ect. Security phone for house! ... signal to based telephone, then the telephone will alarm and send message or call default number within 10 ... corporation gains twelve patent and succeed in passing ISO 9001, CE, ROSH etc . GSM Alarm system, Alram telephone system,Security system. wireless alarm system,GSM wireless phone